AbstractFieldsConfigurationFactory::isIdentityField() - Code Metrics - Inspection of "Update PHP-CS-Fixer rules" - Ecodev/graphql-doctrine - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Push — master ( 86a480...4ac9be )

by Adrien

created 2020-05-18 03:16 UTC

isIdentityField() A

↳ Parent: AbstractFieldsConfigurationFactory

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	3
rs	10
c	0
b	0
f	0
ccs	2
cts	2
cp	1
cc	1
eloc	1
nc	1
nop	1
crap	1

<?php

declare(strict_types=1);

namespace GraphQL\Doctrine\Factory;

use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping\ClassMetadata;
use GraphQL\Doctrine\Annotation\AbstractAnnotation;
use GraphQL\Doctrine\Annotation\Exclude;
use GraphQL\Doctrine\Exception;
use GraphQL\Type\Definition\InputType;
use GraphQL\Type\Definition\NonNull;
use GraphQL\Type\Definition\Type;
use GraphQL\Type\Definition\WrappingType;
use ReflectionClass;
use ReflectionMethod;
use ReflectionNamedType;
use ReflectionParameter;
use ReflectionProperty;

/**
 * A factory to create a configuration for all fields of an entity
 */
abstract class AbstractFieldsConfigurationFactory extends AbstractFactory
{
    /**
     * Doctrine metadata for the entity
     *
     * @var ClassMetadata
     */
    private $metadata;

    /**
     * The identity field name, eg: "id"
     *
     * @var string
     */
    private $identityField;

    /**
     * Returns the regexp pattern to filter method names
     */
    abstract protected function getMethodPattern(): string;

    /**
     * Get the entire configuration for a method
     */
    abstract protected function methodToConfiguration(ReflectionMethod $method): ?array;

    /**
     * Create a configuration for all fields of Doctrine entity
     */
    public function create(string $className): array
    {
        $this->findIdentityField($className);

        $class = $this->metadata->getReflectionClass();
        $methods = $class->getMethods(ReflectionMethod::IS_PUBLIC);
        $fieldConfigurations = [];
        foreach ($methods as $method) {
            // Skip non-callable or non-instance
            if ($method->isAbstract() || $method->isStatic()) {
                continue;
            }

            // Skip non-getter methods
            $name = $method->getName();
            if (!preg_match($this->getMethodPattern(), $name)) {
                continue;
            }

            // Skip exclusion specified by user
            if ($this->isExcluded($method)) {
                continue;
            }

            $configuration = $this->methodToConfiguration($method);
            if ($configuration) {
                $fieldConfigurations[] = $configuration;
            }
        }

        return $fieldConfigurations;
    }

    /**
     * Returns whether the getter is excluded
     */
    private function isExcluded(ReflectionMethod $method): bool
    {
        $exclude = $this->getAnnotationReader()->getMethodAnnotation($method, Exclude::class);

        return $exclude !== null;
    }

    /**
     * Get instance of GraphQL type from a PHP class name
     *
     * Supported syntaxes are the following:
     *
     *  - `?MyType`
     *  - `null|MyType`
     *  - `MyType|null`
     *  - `MyType[]`
     *  - `?MyType[]`
     *  - `null|MyType[]`
     *  - `MyType[]|null`
     */
    final protected function getTypeFromPhpDeclaration(ReflectionMethod $method, ?string $typeDeclaration, bool $isEntityId = false): ?Type
    {
        if (!$typeDeclaration) {
            return null;
        }

        $isNullable = 0;
        $name = preg_replace('~(^\?|^null\||\|null$)~', '', $typeDeclaration, -1, $isNullable);

        $isList = 0;
        $name = preg_replace('~^(.*)\[\]$~', '$1', $name, -1, $isList);
        $name = $this->adjustNamespace($method, $name);
        $type = $this->getTypeFromRegistry($name, $isEntityId);

        if ($isList) {
            $type = Type::listOf(Type::nonNull($type));
        }

        if (!$isNullable) {
            $type = Type::nonNull($type);
        }

        return $type;
    }

    /**
     * Prepend namespace of the method if the class actually exists
     */
    private function adjustNamespace(ReflectionMethod $method, string $type): string
    {
        if ($type === 'self') {
            $type = $method->getDeclaringClass()->getName();
        }

        $namespace = $method->getDeclaringClass()->getNamespaceName();
        if ($namespace) {
            $namespacedType = $namespace . '\\' . $type;

            if (class_exists($namespacedType)) {
                return $namespacedType;
            }
        }

        return $type;
    }

    /**
     * Get a GraphQL type instance from PHP type hinted type, possibly looking up the content of collections
     *
     * @throws Exception
     */
    final protected function getTypeFromReturnTypeHint(ReflectionMethod $method, string $fieldName): ?Type
    {
        $returnType = $method->getReturnType();
        if (!$returnType instanceof ReflectionNamedType) {
            return null;
        }

        $returnTypeName = $returnType->getName();
        if (is_a($returnTypeName, Collection::class, true) || $returnTypeName === 'array') {
            $targetEntity = $this->getTargetEntity($fieldName);
            if (!$targetEntity) {
                throw new Exception('The method ' . $this->getMethodFullName($method) . ' is type hinted with a return type of `' . $returnTypeName . '`, but the entity contained in that collection could not be automatically detected. Either fix the type hint, fix the doctrine mapping, or specify the type with `@API\Field` annotation.');
            }

            $type = Type::listOf(Type::nonNull($this->getTypeFromRegistry($targetEntity, false)));
            if (!$returnType->allowsNull()) {
                $type = Type::nonNull($type);
            }

            return $type;
        }

        return $this->reflectionTypeToType($returnType);
    }

    /**
     * Convert a reflected type to GraphQL Type
     */
    final protected function reflectionTypeToType(ReflectionNamedType $reflectionType, bool $isEntityId = false): Type
    {
        $name = $reflectionType->getName();
        if ($name === 'self') {
            $name = $this->metadata->name;
        }

        $type = $this->getTypeFromRegistry($name, $isEntityId);
        if (!$reflectionType->allowsNull()) {
            $type = Type::nonNull($type);
        }

        return $type;
    }

    /**
     * Look up which field is the ID
     */
    private function findIdentityField(string $className): void
    {
        $this->metadata = $this->entityManager->getClassMetadata($className);
        foreach ($this->metadata->fieldMappings as $meta) {
            if ($meta['id'] ?? false) {
                $this->identityField = $meta['fieldName'];
            }
        }
    }

    /**
     * Returns the fully qualified method name
     */
    final protected function getMethodFullName(ReflectionMethod $method): string
    {
        return '`' . $method->getDeclaringClass()->getName() . '::' . $method->getName() . '()`';
    }

    /**
     * Throws exception if type is an array
     *
     * @throws Exception
     */
    final protected function throwIfArray(ReflectionParameter $param, ?string $type): void
    {
        if ($type === 'array') {
            throw new Exception('The parameter `$' . $param->getName() . '` on method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' is type hinted as `array` and is not overridden via `@API\Argument` annotation. Either change the type hint or specify the type with `@API\Argument` annotation.');
        }
    }

    /**
     * Returns whether the given field name is the identity for the entity
     */
    final protected function isIdentityField(string $fieldName): bool
    {
        return $this->identityField === $fieldName;
    }

    /**
     * Finds the target entity in the given association
     */
    private function getTargetEntity(string $fieldName): ?string
    {
        return $this->metadata->associationMappings[$fieldName]['targetEntity'] ?? null;
    }

    /**
     * Return the default value, if any, of the property for the current entity
     *
     * It does take into account that the property might be defined on a parent class
     * of entity. And it will find it if that is the case.
     *
     * @return mixed
     */
    final protected function getPropertyDefaultValue(string $fieldName)
    {
        /** @var null|ReflectionProperty $property */
        $property = $this->metadata->getReflectionProperties()[$fieldName] ?? null;
        if (!$property) {
            return null;
        }

        return $property->getDeclaringClass()->getDefaultProperties()[$fieldName] ?? null;
    }

    /**
     * Returns a type from our registry
     */
    private function getTypeFromRegistry(string $type, bool $isEntityId): Type
    {
        if ($this->types->isEntity($type) && $isEntityId) {
            return $this->types->getId($type);
        }

        if ($this->types->isEntity($type) && !$isEntityId) {
            return $this->types->getOutput($type);
        }

        return $this->types->get($type);
    }

    /**
     * Input with default values cannot be non-null
     */
    final protected function nonNullIfHasDefault(AbstractAnnotation $annotation): void
    {
        $type = $annotation->getTypeInstance();
        if ($type instanceof NonNull && $annotation->hasDefaultValue()) {
            $annotation->setTypeInstance($type->getWrappedType());
        }
    }

    /**
     * Throws exception if argument type is invalid
     *
     * @throws Exception
     */
    final protected function throwIfNotInputType(ReflectionParameter $param, AbstractAnnotation $annotation): void
    {
        $type = $annotation->getTypeInstance();
        $class = new ReflectionClass($annotation);
        $annotationName = $class->getShortName();

        if (!$type) {
            throw new Exception('Could not find type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . '. Either type hint the parameter, or specify the type with `@API\\' . $annotationName . '` annotation.');
        }

        if ($type instanceof WrappingType) {
            $type = $type->getWrappedType(true);
        }

        if (!($type instanceof InputType)) {
            throw new Exception('Type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' must be an instance of `' . InputType::class . '`, but was `' . get_class($type) . '`. Use `@API\\' . $annotationName . '` annotation to specify a custom InputType.');
        }
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace GraphQL\Doctrine\Factory;
6
7		use Doctrine\Common\Collections\Collection;
8		use Doctrine\ORM\Mapping\ClassMetadata;
9		use GraphQL\Doctrine\Annotation\AbstractAnnotation;
10		use GraphQL\Doctrine\Annotation\Exclude;
11		use GraphQL\Doctrine\Exception;
12		use GraphQL\Type\Definition\InputType;
13		use GraphQL\Type\Definition\NonNull;
14		use GraphQL\Type\Definition\Type;
15		use GraphQL\Type\Definition\WrappingType;
16		use ReflectionClass;
17		use ReflectionMethod;
18		use ReflectionNamedType;
19		use ReflectionParameter;
20		use ReflectionProperty;
21
22		/**
23		* A factory to create a configuration for all fields of an entity
24		*/
25		abstract class AbstractFieldsConfigurationFactory extends AbstractFactory
26		{
27		/**
28		* Doctrine metadata for the entity
29		*
30		* @var ClassMetadata
31		*/
32		private $metadata;
33
34		/**
35		* The identity field name, eg: "id"
36		*
37		* @var string
38		*/
39		private $identityField;
40
41		/**
42		* Returns the regexp pattern to filter method names
43		*/
44		abstract protected function getMethodPattern(): string;
45
46		/**
47		* Get the entire configuration for a method
48		*/
49		abstract protected function methodToConfiguration(ReflectionMethod $method): ?array;
50
51		/**
52		* Create a configuration for all fields of Doctrine entity
53		*/
54	21	public function create(string $className): array
55		{
56	21	$this->findIdentityField($className);
57
58	21	$class = $this->metadata->getReflectionClass();
59	21	$methods = $class->getMethods(ReflectionMethod::IS_PUBLIC);
60	21	$fieldConfigurations = [];
61	21	foreach ($methods as $method) {
62		// Skip non-callable or non-instance
63	21	if ($method->isAbstract() \|\| $method->isStatic()) {
64	1	continue;
65		}
66
67		// Skip non-getter methods
68	21	$name = $method->getName();
69	21	if (!preg_match($this->getMethodPattern(), $name)) {
70	14	continue;
71		}
72
73		// Skip exclusion specified by user
74	21	if ($this->isExcluded($method)) {
75	3	continue;
76		}
77
78	19	$configuration = $this->methodToConfiguration($method);
79	12	if ($configuration) {
80	12	$fieldConfigurations[] = $configuration;
81		}
82		}
83
84	12	return $fieldConfigurations;
85		}
86
87		/**
88		* Returns whether the getter is excluded
89		*/
90	21	private function isExcluded(ReflectionMethod $method): bool
91		{
92	21	$exclude = $this->getAnnotationReader()->getMethodAnnotation($method, Exclude::class);
93
94	19	return $exclude !== null;
95		}
96
97		/**
98		* Get instance of GraphQL type from a PHP class name
99		*
100		* Supported syntaxes are the following:
101		*
102		* - `?MyType`
103		* - `null\|MyType`
104		* - `MyType\|null`
105		* - `MyType[]`
106		* - `?MyType[]`
107		* - `null\|MyType[]`
108		* - `MyType[]\|null`
109		*/
110	19	final protected function getTypeFromPhpDeclaration(ReflectionMethod $method, ?string $typeDeclaration, bool $isEntityId = false): ?Type
111		{
112	19	if (!$typeDeclaration) {
113	19	return null;
114		}
115
116	13	$isNullable = 0;
117	13	$name = preg_replace('~(^\?\|^null\\|\|\\|null$)~', '', $typeDeclaration, -1, $isNullable);
118
119	13	$isList = 0;
120	13	$name = preg_replace('~^(.*)\[\]$~', '$1', $name, -1, $isList);
121	13	$name = $this->adjustNamespace($method, $name);
122	13	$type = $this->getTypeFromRegistry($name, $isEntityId);
123
124	13	if ($isList) {
125	6	$type = Type::listOf(Type::nonNull($type));
126		}
127
128	13	if (!$isNullable) {
129	13	$type = Type::nonNull($type);
130		}
131
132	13	return $type;
133		}
134
135		/**
136		* Prepend namespace of the method if the class actually exists
137		*/
138	13	private function adjustNamespace(ReflectionMethod $method, string $type): string
139		{
140	13	if ($type === 'self') {
141		$type = $method->getDeclaringClass()->getName();
142		}
143
144	13	$namespace = $method->getDeclaringClass()->getNamespaceName();
145	13	if ($namespace) {
146	13	$namespacedType = $namespace . '\\' . $type;
147
148	13	if (class_exists($namespacedType)) {
149		return $namespacedType;
150		}
151		}
152
153	13	return $type;
154		}
155
156		/**
157		* Get a GraphQL type instance from PHP type hinted type, possibly looking up the content of collections
158		*
159		* @throws Exception
160		*/
161	9	final protected function getTypeFromReturnTypeHint(ReflectionMethod $method, string $fieldName): ?Type
162		{
163	9	$returnType = $method->getReturnType();
164	9	if (!$returnType instanceof ReflectionNamedType) {
165	1	return null;
166		}
167
168	8	$returnTypeName = $returnType->getName();
169	8	if (is_a($returnTypeName, Collection::class, true) \|\| $returnTypeName === 'array') {
170	3	$targetEntity = $this->getTargetEntity($fieldName);
171	3	if (!$targetEntity) {
172	1	throw new Exception('The method ' . $this->getMethodFullName($method) . ' is type hinted with a return type of `' . $returnTypeName . '`, but the entity contained in that collection could not be automatically detected. Either fix the type hint, fix the doctrine mapping, or specify the type with `@API\Field` annotation.');
173		}
174
175	2	$type = Type::listOf(Type::nonNull($this->getTypeFromRegistry($targetEntity, false)));
176	2	if (!$returnType->allowsNull()) {
177	2	$type = Type::nonNull($type);
178		}
179
180	2	return $type;
181		}
182
183	7	return $this->reflectionTypeToType($returnType);
184		}
185
186		/**
187		* Convert a reflected type to GraphQL Type
188		*/
189	12	final protected function reflectionTypeToType(ReflectionNamedType $reflectionType, bool $isEntityId = false): Type
190		{
191	12	$name = $reflectionType->getName();
192	12	if ($name === 'self') {
193	5	$name = $this->metadata->name;
194		}
195
196	12	$type = $this->getTypeFromRegistry($name, $isEntityId);
197	12	if (!$reflectionType->allowsNull()) {
198	11	$type = Type::nonNull($type);
199		}
200
201	12	return $type;
202		}
203
204		/**
205		* Look up which field is the ID
206		*/
207	21	private function findIdentityField(string $className): void
208		{
209	21	$this->metadata = $this->entityManager->getClassMetadata($className);
210	21	foreach ($this->metadata->fieldMappings as $meta) {
211	21	if ($meta['id'] ?? false) {
212	21	$this->identityField = $meta['fieldName'];
213		}
214		}
215	21	}
216
217		/**
218		* Returns the fully qualified method name
219		*/
220	7	final protected function getMethodFullName(ReflectionMethod $method): string
221		{
222	7	return '`' . $method->getDeclaringClass()->getName() . '::' . $method->getName() . '()`';
223		}
224
225		/**
226		* Throws exception if type is an array
227		*
228		* @throws Exception
229		*/
230	14	final protected function throwIfArray(ReflectionParameter $param, ?string $type): void
231		{
232	14	if ($type === 'array') {
233	1	throw new Exception('The parameter `$' . $param->getName() . '` on method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' is type hinted as `array` and is not overridden via `@API\Argument` annotation. Either change the type hint or specify the type with `@API\Argument` annotation.');
234		}
235	14	}
236
237		/**
238		* Returns whether the given field name is the identity for the entity
239		*/
240	10	final protected function isIdentityField(string $fieldName): bool
241		{
242	10	return $this->identityField === $fieldName;
243		}
244
245		/**
246		* Finds the target entity in the given association
247		*/
248	3	private function getTargetEntity(string $fieldName): ?string
249		{
250	3	return $this->metadata->associationMappings[$fieldName]['targetEntity'] ?? null;
251		}
252
253		/**
254		* Return the default value, if any, of the property for the current entity
255		*
256		* It does take into account that the property might be defined on a parent class
257		* of entity. And it will find it if that is the case.
258		*
259		* @return mixed
260		*/
261	6	final protected function getPropertyDefaultValue(string $fieldName)
262		{
263		/** @var null\|ReflectionProperty $property */
264	6	$property = $this->metadata->getReflectionProperties()[$fieldName] ?? null;
265	6	if (!$property) {
266	4	return null;
267		}
268
269	5	return $property->getDeclaringClass()->getDefaultProperties()[$fieldName] ?? null;
270		}
271
272		/**
273		* Returns a type from our registry
274		*/
275	14	private function getTypeFromRegistry(string $type, bool $isEntityId): Type
276		{
277	14	if ($this->types->isEntity($type) && $isEntityId) {
278	6	return $this->types->getId($type);
279		}
280
281	14	if ($this->types->isEntity($type) && !$isEntityId) {
282	7	return $this->types->getOutput($type);
283		}
284
285	13	return $this->types->get($type);
286		}
287
288		/**
289		* Input with default values cannot be non-null
290		*/
291	14	final protected function nonNullIfHasDefault(AbstractAnnotation $annotation): void
292		{
293	14	$type = $annotation->getTypeInstance();
294	14	if ($type instanceof NonNull && $annotation->hasDefaultValue()) {
295	9	$annotation->setTypeInstance($type->getWrappedType());
296		}
297	14	}
298
299		/**
300		* Throws exception if argument type is invalid
301		*
302		* @throws Exception
303		*/
304	14	final protected function throwIfNotInputType(ReflectionParameter $param, AbstractAnnotation $annotation): void
305		{
306	14	$type = $annotation->getTypeInstance();
307	14	$class = new ReflectionClass($annotation);
308	14	$annotationName = $class->getShortName();
309
310	14	if (!$type) {
311	2	throw new Exception('Could not find type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . '. Either type hint the parameter, or specify the type with `@API\\' . $annotationName . '` annotation.');
312		}
313
314	12	if ($type instanceof WrappingType) {
315	12	$type = $type->getWrappedType(true);
316		}
317
318	12	if (!($type instanceof InputType)) {
319	1	throw new Exception('Type for parameter `$' . $param->name . '` for method ' . $this->getMethodFullName($param->getDeclaringFunction()) . ' must be an instance of `' . InputType::class . '`, but was `' . get_class($type) . '`. Use `@API\\' . $annotationName . '` annotation to specify a custom InputType.');
320		}
321	11	}
322		}
323

Ecodev / graphql-doctrine

Push — master ( 86a480...4ac9be )

isIdentityField() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like